Large-span bridge deck concrete pouring device and pouring method thereof

Abstract

The application relates to the technical field of concrete pouring of bridge decks, in particular to a large-span bridge deck concrete pouring device and a pouring method thereof. The pouring device comprises a guide rail, a lateral moving assembly, a pouring assembly, a switching support assembly and a regulation assembly. The beneficial effect is that: the rotatable cross beam structure is arranged, thereby achieving one-side rotary installation of the cross beam, and then the rotary movement of the cross beam is utilized to conveniently adjust and maintain the length of the pouring head and the cross beam; the pneumatic components controlled by the multiple groups of air pump controllers are arranged, the automatic switching of the cross beam rotation and the guide rail advancement is realized, and therefore the pouring device is suitable for bridge deck pouring with different spans and lengths.

Description

Technical Field

[0001] This invention relates to the field of concrete pouring technology for bridge decks, specifically to a concrete pouring device and method for long-span bridge decks. Background Technology

[0002] Most existing bridges are formed by precast concrete casting. After they are formed and installed, the upper surface needs to be cast and connected in a second time to achieve a seamless and tight connection between multiple precast components.

[0003] The assembled precast components are erected on the bridge piers. The bridge deck, composed of multiple sets of precast concrete components, is relatively long and has a large lateral span, making it difficult to achieve uniform pouring using traditional pouring methods.

[0004] In order to adapt to the pouring of long-span bridge decks, existing technologies typically place the traditional gantry structure on the bridge deck and achieve uniform pouring by installing the pouring head on the three-axis driven gantry. However, the gantry structure is fixed, while the pouring head needs to be maintained and disassembled multiple times during the pouring process. Especially for bridge decks with slopes, pouring heads of different diameters are required for pouring at different locations. Existing gantry structures make it difficult to replace and maintain the pouring head, and the lateral length and longitudinal extension distance of the gantry are limited, making accurate matching impossible. Summary of the Invention

[0005] The purpose of this invention is to provide a concrete pouring device and method for long-span bridge decks to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A concrete pouring device for a long-span bridge deck, the device comprising:

[0008] The guide rails are vertically and slidably mounted on the traction trolley at both ends, and a pair of symmetrical guide rails are laid on the side bases on both sides of the bridge deck.

[0009] A lateral moving assembly, comprising a left frame and a right frame, the left frame and the right frame being slidably mounted on a guide rail, the upper ends of the left frame and the right frame being provided with a frame, the frames on the left frame and the right frame being respectively provided with a pneumatically driven lifting rod and a motor-driven upper sleeve, the left frame being provided with a positioning column, and the right frame being provided with a lower rotating rod rotatably mounted on a bearing;

[0010] The casting assembly includes a crossbeam, a limiting plate, and a casting head. One end of the crossbeam is fixedly connected to the limiting plate, and the lower end of the limiting plate is vertically sleeved on the lower rotating rod. The other end of the crossbeam is provided with a positioning plate that is vertically sleeved on the positioning column. A lifting and pressing circular turntable is provided between the limiting plate and the right side frame. A pneumatically driven top rod is provided on the left side frame. The casting head is horizontally slidably installed on the crossbeam, and the lower end of the casting head faces the bridge deck.

[0011] A switching support assembly is provided on both sides of the left and right frames, extending to the outside of the guide rail. The switching support assembly includes a pneumatically driven lifting column.

[0012] A control assembly is installed on the outer wall of the crossbeam. The control assembly includes an air pump controller, which is connected to various pneumatic components through a multi-position solenoid valve.

[0013] Preferably, a pair of rollers are provided at the lower ends of the left and right frames, the lower ends of the rollers are mounted on the upper ends of the guide rail, and the two ends of the guide rail are connected to lifting and driving hydraulic rods, which are fixed on the traction trolley.

[0014] Preferably, a transverse groove is vertically provided through the crossbeam, the pouring head is slidably installed in the groove, the lower end of the pouring head is provided with a pouring pipe facing the bridge deck, and the upper end of the pouring head is connected to a concrete pool via a peristaltic pump through a folded flexible hose.

[0015] Preferably, the crossbeam is provided with a motor-driven first winding roller and a fixed pre-tightening seat on the side near the left side frame, a second winding roller is provided on the limiting plate, the first winding roller and the second winding roller are connected by a traction rope, a pair of fixed seats are provided on the pouring head, the middle section of the traction rope is tied to the fixed seats, and the pre-tightening seat is connected to the right side frame by a pre-tightening rope.

[0016] Preferably, the switching support assembly includes a lifting cavity opened at the lower end of the left and right frames, the lifting column is vertically slidably installed in the lifting cavity, a limit cover is provided at the lower end of the lifting cavity, the lifting column is I-shaped, a spring is sleeved on the upper end of the lifting column, the spring is pressed between the upper horizontal plate of the lifting column and the limit cover, the lower end of the lifting column is directly opposite the side base, and the lifting cavity is connected to the air pump controller.

[0017] Preferably, the lower end of the limiting plate is provided with a lower sleeve, and the upper end of the limiting plate is provided with an upper rotating rod. The upper rotating rod is vertically inserted into the upper sleeve, and the lower sleeve is vertically inserted into the lower rotating rod. The upper rotating rod, the upper sleeve, the lower rotating rod, and the lower sleeve are all cross-shaped outer contour structures.

[0018] Preferably, the lower outer edge of the limiting plate is provided with an annular upper chuck, and the inner side of the upper chuck is provided with an annular rotating groove. A pair of lifting rods are provided on the right side frame to drive the lifting of the annular turntable, which is rotatably mounted on the rotating groove. A concave annular lower chuck is provided on the right side frame. The upper chuck and the lower chuck are provided with multiple sets of teeth that mesh with each other.

[0019] Preferably, a first bevel gear is provided on the lower outer wall of the upper sleeve, a linkage gear is fixedly sleeved on the rear end of the shaft of the second winding roller, a second bevel gear is vertically meshed with the lower end of the linkage gear, and the upper end of the second bevel gear is directly opposite the first bevel gear.

[0020] Preferably, the upper end of the left side frame is provided with a pressurizing inner cavity, the top rod is vertically inserted into the pressurizing inner cavity, the lifting pressure rod is pressed onto the positioning plate, the lower end of the positioning plate is provided with a positioning hole, the positioning hole is sleeved on the positioning column, and the pressurizing inner cavity is connected to the air pump controller.

[0021] A pouring method based on the above-mentioned long-span bridge deck concrete pouring device, the pouring method comprising the following steps:

[0022] The guide rails are laid by placing a pair of guide rails on the side base and using hydraulic rods to make the guide rails fit against the upper surface of the side base.

[0023] Side frame installation: Install the left and right frames on the guide rail, and install the crossbeam by connecting the left and right frames to achieve the longitudinal advancement of the casting components. The left side of the crossbeam is positioned by the positioning plate and the positioning column, and the right side of the crossbeam is positioned by the up and down sliding connection of the limiting plate.

[0024] Sliding casting, driven by the winding of the first and second winding rollers, uses a traction rope to drive the casting head to slide laterally, thereby achieving lateral casting switching;

[0025] Rotation maintenance involves the vertical rise of the top rod and the circular turntable, which drives the limit plate and positioning plate to rise, thereby raising the crossbeam. Driven by the motor, the crossbeam rotates and moves onto the side base, facilitating maintenance and adjustment of the pouring head.

[0026] Reset: The crossbeam is made to span the bridge deck of a large span by the reverse drive of the motor. The crossbeam is positioned, lowered and locked by the gravity of the lifting pressure rod and the limiting plate.

[0027] The guide rail is advanced by switching the lifting columns in the support assembly, which drives the left and right frames to rise, creating a gap between them and the upper end of the guide rail. The guide rail rises under the traction of the hydraulic rod and creates a gap with the upper end face of the side base. The guide rail is moved forward by the traction trolley, thus adapting to the pouring of long-distance bridge decks.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] This invention enables unilateral rotating installation of the crossbeam by setting a rotatable crossbeam structure. The rotation of the crossbeam allows for convenient adjustment and maintenance of the pouring head and the length of the crossbeam. At the same time, by setting multiple sets of pneumatic components controlled by air pump controllers, the automatic switching between crossbeam rotation and guide rail propulsion is achieved, making the pouring device adaptable to bridge deck pouring of different spans and lengths. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0032] Figure 3 for Figure 1 Enlarged view of the structure at point B in the middle;

[0033] Figure 4 for Figure 1 Enlarged view of the structure at point C;

[0034] Figure 5 for Figure 4 Enlarged view of the structure at point D;

[0035] Figure 6 This is a schematic diagram of the guide rail mounting structure of the present invention;

[0036] Figure 7 This is a three-dimensional structural diagram of the right side frame of the present invention;

[0037] Figure 8 This is a schematic diagram of the three-dimensional structure of the left side frame of the present invention;

[0038] Figure 9 This is a schematic diagram of the right-side frame structure of the present invention;

[0039] Figure 10 for Figure 9 Enlarged view of the structure at point E in the middle;

[0040] Figure 11 This is a three-dimensional structural diagram of the front side of the crossbeam of the present invention;

[0041] Figure 12 This is a schematic diagram of the three-dimensional structure of the beam of the present invention;

[0042] Figure 13 This is a schematic diagram of the three-dimensional structure of the rear side of the crossbeam of the present invention;

[0043] Figure 14 for Figure 11 Enlarged view of the structure at point F in the image;

[0044] Figure 15 for Figure 12 Enlarged view of the structure at point J.

[0045] In the diagram: 1. Bridge deck; 2. Side foundation; 3. Crossbeam; 4. Right side frame; 5. Left side frame; 6. Guide rail; 7. Pouring head; 8. Pre-tensioning rope; 9. Traction rope; 10. Pouring pipe; 11. Limiting plate; 12. Fixing seat; 13. Roller; 14. Positioning column; 15. Lifting pressure bar; 16. Positioning plate; 17. First winding roller; 18. Lifting inner cavity; 19. Spring; 20. Limiting cover; 21. Lifting column; 22. Pressurizing inner cavity; 23. 24. Top rod; 25. Motor; 26. Circular turntable; 27. Lifting rod; 28. Lower rotating rod; 29. ​​Upper sleeve; 30. Frame; 31. First bevel gear; 32. Upper rotating rod; 33. Rotary groove; 34. Lower sleeve; 35. Second winding roller; 36. Second bevel gear; 37. Hydraulic rod; 38. Traction trolley; 39. Air pump controller; 40. Pretension seat; 41. Positioning hole; 42. Lower chuck; 43. Upper chuck; 44. Linkage gear. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Please see Figures 1 to 15 The present invention provides a technical solution:

[0048] Example 1:

[0049] A long-span bridge deck concrete pouring device, comprising a guide rail 6, a lateral movement component, a pouring component, a switching support component, and a control component.

[0050] The front and rear ends of the guide rail 6 are vertically lifted and slidably mounted on the traction trolley 37, and a pair of symmetrical guide rails 6 are laid on the side bases 2 on both sides of the bridge deck 1.

[0051] The guide rail 6 is driven to move back and forth by the traction trolley 37, thereby realizing the segmented guidance of the guide rail 6. As the guide rail 6 advances, it adapts to the pouring length of the bridge deck 1.

[0052] The lateral movement assembly includes a left frame 5 and a right frame 4, which are slidably mounted on a guide rail 6.

[0053] Longitudinal propulsion is achieved by coordinating the side frame with the guide rail 6.

[0054] Both the left frame 5 and the right frame 4 are equipped with frames 29 at their upper ends. The frames 29 on the left frame 5 and the right frame 4 are respectively equipped with a pneumatically driven lifting pressure rod 15 and a motor-driven upper sleeve 28. The left frame 5 is equipped with a positioning column 14, and the right frame 4 is equipped with a lower rotating rod 27 with a bearing for rotation. The casting assembly includes a crossbeam 3, a limiting plate 11, and a casting head 7. One end of the crossbeam 3 is fixedly connected to the limiting plate 11, and the lower end of the limiting plate 11 is vertically sleeved on the lower rotating rod 27. The other end of the crossbeam 3 is equipped with a positioning plate 16 that is vertically sleeved on the positioning column 14. A lifting and pressing circular turntable 25 is installed between the limiting plate 11 and the right frame 4. The left frame 5 is equipped with a pneumatically driven top rod 23. The casting head 7 is horizontally slidably installed on the crossbeam 3, and the lower end of the casting head 7 faces the bridge deck 1.

[0055] By setting the positioning plate 16 and the positioning column 14 to cooperate, the positioning and sleeve installation of one end of the crossbeam 3 is realized. By setting the lower rotating rod 27 and the limiting plate 11 to sleeve, the positioning and sleeve installation of the other end of the crossbeam 3 is realized. Thus, the pouring head 7 is used to realize the lateral driving pouring of the bridge deck 1.

[0056] The left side frame 5 and the right side frame 4 are provided with switching support assemblies extending to the outside of the guide rail 6. The switching support assemblies include pneumatically driven lifting columns 21.

[0057] By setting up the lifting column 21, the left side frame 5 and the right side frame 4 are lifted up and separated from the guide rail 6, making it easier to adjust the position of the guide rail 6.

[0058] The control assembly is installed on the outer wall of the crossbeam 3. The control assembly includes an air pump controller 38, which is connected to various pneumatic components through a multi-position solenoid valve.

[0059] By setting up an air pump controller 38, the internal pressure of each pneumatic component can be adjusted by the intake and exhaust of air, thereby enabling convenient and automatic switching of movements such as lifting, rotating, and propulsion, which greatly improves the linkage and intelligence of the device's propulsion-type casting.

[0060] Example 2:

[0061] Based on embodiment 1, a pair of rollers 13 are provided at the lower ends of the left frame 5 and the right frame 4. The lower ends of the rollers 13 are installed on the upper ends of the guide rail 6. The two ends of the guide rail 6 are connected to the lifting drive hydraulic rods 36. The hydraulic rods 36 are fixed on the traction trolley 37. A transverse chute is vertically provided through the crossbeam 3. The pouring head 7 is slidably installed in the chute. The lower end of the pouring head 7 is provided with a pouring pipe 10 facing the bridge deck 1. The upper end of the pouring head 7 is connected to a concrete pool via a peristaltic pump through a folded hose.

[0062] The rollers 13 are designed to enable the left side frame 5 and the right side frame 4 to be smoothly pushed and poured on the guide rail 6. The hydraulic rods 36 drive the two ends of the guide rail 6 to move up and down, thereby creating a gap between the guide rail 6 and the upper surface of the side base 2, which facilitates the advancement of the guide rail 6.

[0063] Example 3:

[0064] Based on embodiment 2, a motor-driven first winding roller 17 and a fixed pre-tightening seat 39 are provided on the side of the crossbeam 3 near the left side frame 5. A second winding roller 34 is provided on the limiting plate 11. The first winding roller 17 and the second winding roller 34 are connected by a traction rope 9. A pair of fixed seats 12 are provided on the pouring head 7. The middle section of the traction rope 9 is tied to the fixed seat 12. The pre-tightening seat 39 is connected to the right side frame 4 by a pre-tightening rope 8.

[0065] By setting up the traction rope 9, the lateral sliding of the pouring head 7 is adjusted, thereby achieving the purpose of lateral pouring of the bridge deck 1.

[0066] Example 4:

[0067] Based on embodiment 3, the switching support assembly includes a lifting inner cavity 18 opened at the lower end of the left side frame 5 and the right side frame 4. The lifting column 21 is vertically slidably installed in the lifting inner cavity 18. A limit cover 20 is provided at the lower end port of the lifting inner cavity 18. The lifting column 21 is I-shaped. A spring 19 is sleeved on the upper end of the lifting column 21. The spring 19 is pressed between the upper horizontal plate of the lifting column 21 and the limit cover 20. The lower end of the lifting column 21 is directly opposite the side base 2. The lifting inner cavity 18 is connected to the air pump controller 38.

[0068] By setting the air pump controller 38 to introduce air into the lifting inner cavity 18, the internal pressure increases, driving the lifting column 21 to descend and compress the spring 19, so that the lower end of the lifting column 21 presses against the side base 2, causing the left side frame 5 and the right side frame 4 to rise as a whole and create a gap between them and the guide rail 6.

[0069] Example 5:

[0070] Based on Embodiment 1, a lower sleeve 33 is provided at the lower end of the limiting disk 11, and an upper rotating rod 31 is provided at the upper end of the limiting disk 11. The upper rotating rod 31 is vertically inserted into the upper sleeve 28, and the lower sleeve 33 is vertically inserted into the lower rotating rod 27. The upper rotating rod 31, the upper sleeve 28, the lower rotating rod 27, and the lower sleeve 33 are all cross-shaped outer contour structures.

[0071] By setting a cross-shaped outer contour, the lifting and sliding connection and synchronous rotation of the limiting disk 11 are formed.

[0072] Example 6:

[0073] Based on embodiment 4, the lower outer edge of the limiting disk 11 is provided with an annular upper chuck 42, the inner side of the upper chuck 42 is provided with an annular rotating groove 32, the right side frame 4 is provided with a pair of lifting rods 26 driving the lifting of an annular turntable 25, the annular turntable 25 is rotatably mounted on the rotating groove 32, the right side frame 4 is provided with a concave annular lower chuck 41, the upper chuck 42 and the lower chuck 41 are provided with multiple sets of teeth that mesh with each other.

[0074] The upper chuck 42 and the lower chuck 41 are used to position and engage the limiting plate 11. The lifting rod 26 is used to squeeze and lift the limiting plate 11, and the upper chuck 42 and the lower chuck 41 are separated. Driven by the motor 24, the limiting plate 11 and the crossbeam 3 rotate at an angle. With the cooperation of the annular turntable 25 and the rotating groove 32, the limiting plate 11 can rotate circumferentially under vertical compression, thereby rotating the crossbeam 3 to a lateral position, which facilitates the maintenance and length adjustment of the crossbeam 3 and the pouring head 7.

[0075] Example 7:

[0076] Based on embodiment 4, a first bevel gear 30 is provided on the lower outer wall of the upper sleeve 28, and a linkage gear 43 is fixedly sleeved on the rear end of the rotating shaft of the second winding roller 34. The lower end of the linkage gear 43 is vertically meshed with a second bevel gear 35, and the upper end of the second bevel gear 35 is directly opposite the first bevel gear 30.

[0077] By setting up a linked gear structure, when the limiting plate 11 is lifted and needs to be rotated at an angle, as the limiting plate 11 rises, the second bevel gear 35 meshes with the first bevel gear 30. When the upper sleeve 28 drives the crossbeam 3 to rotate, it drives the second winding roller 34 to rotate, thereby retracting the pouring head 7 to the side close to the limiting plate 11. This avoids excessive weight on the free end of the crossbeam 3, which could cause the center of gravity to shift and the crossbeam 3 to bend, thus improving the protection of the crossbeam 3.

[0078] Example 8:

[0079] Based on embodiment 7, a pressurizing inner cavity 22 is provided at the upper end of the left side frame 5, the top rod 23 is vertically inserted into the pressurizing inner cavity 22, the lifting pressure rod 15 is pressed onto the positioning plate 16, the lower end of the positioning plate 16 is provided with a positioning hole 40, the positioning hole 40 is sleeved on the positioning column 14, and the pressurizing inner cavity 22 and the lifting pressure rod 15 are connected to the air pump controller 38.

[0080] The internal pressure of the pressurized inner cavity 22 is controlled by the air pump controller 38, which increases the internal pressure. The push rod 23 lifts one end of the crossbeam 3, so that the limit plate 11 and positioning plate 16 at both ends of the crossbeam 3 rise synchronously, avoiding bending of the crossbeam 3 due to unilateral lifting.

[0081] A pouring method based on the above-mentioned long-span bridge deck concrete pouring device includes the following steps:

[0082] The guide rails are laid by laying a pair of guide rails 6 on the side base 2 and using hydraulic rods 36 to make the guide rails 6 fit against the upper surface of the side base 2.

[0083] Side frame installation: The left frame 5 and the right frame 4 are installed on the guide rail 6. The crossbeam 3 is installed by connecting the left frame 5 and the right frame 4 to realize the longitudinal advancement of the casting component. The left side of the crossbeam 3 is positioned by the positioning plate 16 and the positioning column 14, and the right side of the crossbeam 3 is positioned by the upper and lower sliding connection of the limiting plate 11.

[0084] Sliding pouring: Driven by the winding of the first winding roller 17 and the second winding roller 34, the pouring head 7 is driven to slide laterally by the traction rope 9 to achieve lateral pouring switching.

[0085] For rotational maintenance, the vertical rise of the top rod 23 and the annular turntable 25 drives the limit plate 11 and the positioning plate 16 to rise, thereby causing the crossbeam 3 to rise. Driven by the motor 24, the crossbeam 3 is rotated, thus allowing the crossbeam 3 to rotate onto the side base 2, which facilitates the maintenance and adjustment of the pouring head 7.

[0086] Reset, the crossbeam 3 is made to span the bridge deck 1 with a large span by the reverse drive of the motor 24, and the crossbeam 3 is positioned, lowered and locked by the gravity of the lifting pressure rod 15 and the limiting plate 11.

[0087] The guide rail is advanced by switching the lifting column 21 in the support assembly, which drives the left frame 5 and the right frame 4 to rise, creating a gap between them and the upper end of the guide rail 6. The guide rail 6 rises under the traction of the hydraulic rod 36 and creates a gap with the upper end face of the side base 2. The guide rail 6 is moved forward by the traction trolley 37, thus adapting to the pouring of long-distance bridge decks.

[0088] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A long-span bridge deck concrete pouring device, characterized in that: The pouring device comprises: A guide rail (6) vertically and slidably installed at the front and rear ends of a traction trolley (37), and a pair of guide rails (6) symmetrically arranged on both sides of the side base (2) of the bridge deck (1); A lateral movement assembly comprising a left side frame (5) and a right side frame (4) slidably installed on the guide rail (6), and a frame (29) arranged at the upper end of the left side frame (5) and the right side frame (4), a lifting pressure rod (15) driven by a pneumatic element and an upper sleeve (28) driven by a motor (24) arranged on the frame (29) of the left side frame (5) and the right side frame (4), a positioning column (14) arranged on the left side frame (5), and a lower rotating rod (27) rotatably installed on the right side frame (4); A pouring assembly comprising a cross beam (3), a limiting disc (11) and a pouring head (7), one end of the cross beam (3) fixedly connected with the limiting disc (11), the lower end of the limiting disc (11) vertically sleeved on the lower rotating rod (27), the other end of the cross beam (3) provided with a positioning disc (16) vertically sleeved with the positioning column (14), a circular rotating disc (25) installed by lifting and extrusion arranged between the limiting disc (11) and the right side frame (4), a top rod (23) driven by a pneumatic element arranged on the left side frame (5), the pouring head (7) horizontally slidably installed on the cross beam (3), and the lower end of the pouring head (7) opposite to the bridge deck (1); A switching support assembly arranged on both sides of the left side frame (5) and the right side frame (4) and extending to the outside of the guide rail (6), the switching support assembly comprising a lifting stand (21) driven by a pneumatic element; A control assembly installed on the outer wall of the cross beam (3), the control assembly comprising a gas pump controller (38) connected with each pneumatic element through a multi-position electromagnetic valve. The beam (3) is provided with a motor-driven first winding roller (17) and a fixedly installed pre-tightening seat (39) near one side of the left side frame (5), the limiting disc (11) is provided with a second winding roller (34), the first winding roller (17) and the second winding roller (34) are connected through a traction rope (9), the pouring head (7) is provided with a pair of fixed seats (12), the middle section of the traction rope (9) is bound on the fixed seat (12), the pre-tightening seat (39) and the right side frame (4) are connected through a pre-tightening rope (8); the outer edge of the lower end of the limiting disc (11) is provided with a circular upper chuck (42), the inner side of the upper chuck (42) is provided with a circular rotating groove (32), the right side frame (4) is provided with a circular rotating disc (25) driven to lift by a pair of lifting rods (26), the circular rotating disc (25) is rotatably installed on the rotating groove (32), the right side frame (4) is provided with a circular lower chuck (41) concave downward, the upper chuck (42) and the lower chuck (41) are provided with a plurality of sets of teeth that are engaged with each other.

2. The long-span bridge deck concrete pouring device according to claim 1, characterized in that: The lower ends of the left side frame (5) and the right side frame (4) are provided with a pair of rollers (13), the lower ends of the rollers (13) are installed on the upper ends of guide rails (6), the two ends of the guide rails (6) are connected with hydraulic rods (36) driven to lift, the hydraulic rods (36) are fixed on a traction trolley (37).

3. The long-span bridge deck concrete pouring device according to claim 2, characterized in that: The beam (3) is provided with a transverse sliding groove vertically penetrating through, the pouring head (7) is transversely and slidingly installed in the sliding groove, the lower end of the pouring head (7) is provided with a pouring pipe (10) facing the bridge deck (1), the upper end of the pouring head (7) is connected with a concrete pool through a folding hose connected with a peristaltic pump.

4. The large-span bridge deck concrete pouring device according to claim 3, characterized in that: The switching support assembly comprises lifting inner cavities (18) opened in the lower ends of the left side frame (5) and the right side frame (4), the lifting stand (21) is vertically and slidingly installed in the lifting inner cavity (18), the lower end of the lifting inner cavity (18) is provided with a limiting cover (20), the lifting stand (21) is in the shape of an I-beam, the upper end of the lifting stand (21) is sleeved with a spring (19), the spring (19) is compressed between the upper end of the lifting stand (21) and the limiting cover (20), the lower end of the lifting stand (21) faces the side foundation (2), and the lifting inner cavity (18) is communicated with an air pump controller (38).

5. The long-span bridge deck concrete pouring device according to claim 4, characterized in that: The lower end of the limiting disc (11) is provided with a lower sleeve (33), and the upper end of the limiting disc (11) is provided with an upper rotating rod (31), the upper rotating rod (31) is vertically inserted into the upper sleeve (28), the lower sleeve (33) is vertically inserted into the lower rotating rod (27), and the upper rotating rod (31), the upper sleeve (28), the lower rotating rod (27) and the lower sleeve (33) all have a cross-shaped outer contour structure.

6. The large-span bridge deck concrete pouring device according to claim 5, characterized in that: The upper end of the left side frame (5) is provided with a pressurized inner cavity (22), the top rod (23) is vertically inserted in the pressurized inner cavity (22), the lifting pressure rod (15) is press-fit on the positioning disc (16), the lower end of the positioning disc (16) is provided with a positioning hole (40), the positioning hole (40) is sleeved on the positioning column (14), and the pressurized inner cavity (22) is in communication with the lifting pressure rod (15) and the air pump controller (38).

7. A method of pouring according to the pouring device for long-span bridge decks as claimed in claim 6, characterized in that: The pouring method comprises the following steps: Rail laying, a pair of guide rails (6) are laid on the side base (2), and the guide rails (6) are attached to the upper end surface of the side base (2) through the hydraulic rod (36); Side frame installation, the left side frame (5) and the right side frame (4) are installed on the guide rails (6), the cross beam (3) is sleeved and installed on the left side frame (5) and the right side frame (4), the longitudinal advancement of the pouring assembly is realized, the left side positioning of the cross beam (3) is realized through the positioning disc (16) and the positioning column (14), and the right side positioning of the cross beam (3) is realized through the up-and-down sliding sleeve of the limiting disc (11); Sliding pouring, under the winding drive of the first winding roller (17) and the second winding roller (34), the traction rope (9) drives the pouring head (7) to slide transversely, and transverse pouring switching is realized; Rotary maintenance, the limiting disc (11) and the positioning disc (16) are driven to rise through the vertical rising of the top rod (23) and the circular ring turntable (25), so that the cross beam (3) rises, and the rotary maintenance of the cross beam (3) is realized through the driving of the motor (24), so that the cross beam (3) is rotated to the side base (2), and the pouring head (7) is conveniently maintained and adjusted; Reset, the cross beam (3) is horizontally arranged on the large-span bridge (1) through the reverse driving of the motor (24), and the positioning and descending clamping of the cross beam (3) are realized through the gravity of the lifting pressure rod (15) and the limiting disc (11); Rail advancement, the left side frame (5) and the right side frame (4) are driven to rise through the switching of the lifting column (21) in the support assembly, a gap is formed between the left side frame (5) and the right side frame (4) and the upper end of the guide rail (6), the guide rail (6) is lifted under the traction of the hydraulic rod (36) and a gap is formed between the guide rail (6) and the upper end surface of the side base (2), and the guide rail (6) is moved forward through the traction trolley (37), so that the pouring of the long-distance bridge is adapted.

Images